Although other chemokine-receptor pairs, such as CCL1, CCL8, and CCR8, garnered our attention, these findings suggest the intriguing possibility that the CXCR6-CXCL16 axis may play a role in specific immune cell recruitment and contribute to the pathogenesis of pulmonary fibrosis. The gene discussed is CXCR6; the disease is pulmonary fibrosis.